Re: [Discuss-gnuradio] USRP2 1pps synchronization delay

[Josh Blum]

Does this describe what you are seeing?

http://www.mail-archive.com/address@hidden/msg26328.html

On 09/25/2010 08:50 PM, Kelley, Clifford W wrote:
> We are trying to determine how much delay there is between the 1pps pulse and 
> when the samples come out properly time tagged.  Using a GPS timing receiver we 
> connected up the 10MHz clock and 1pps to the USRP2.  The software is set up to 
> reset on the next 1pps pulse.  With a GPS software receiver we determined that 
> there is a delay of 3 - 6 microseconds which curiously was 3 with a smaller 
> decimation and 6 at a higher decimation.  We've checked over the setup and 
> can't find any reason for this.  Does anyone have any ideas?
>
> Thanks,
>
> Cliff
>
>
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